Guru Stotram has 14 verses selected from the Guru Gita, which forms part of Skanda Puranam. These verses praise the greatness of the guru who imparts knowledge of Vedanta. The essence of these verses is given in this talk.
Accompanying text for Guru Stotram is available for download.
The entire collection of Swamiji's talks is available at the Poornalayam website.